Mixing-machine.



PATENTED JULY 16,1907.

R HOHNBAGH. MIXING MACHINE. APPLICATION FILED DEO. 15,190B.

v No. 860,091.

Z7206]? far rue mamas PETERS cm, WASHINGTON, n. c.

ROBERT HOHNBAOH, or JOLIET, ILLINOIS.

MIXING-MACHINE.

Specification of Letters Patent.

Patented July 16, 1907.

Application filed December 15,1906. Serial No- 347,959-

To all whom 'it may concern:-

Be it known that Ronnn'r HOHNBACH, a citizen of the United States,residing at Joliet, in the county of Will and State of Illinois, hasinvented certain new and useful Improvements in Mixing Machines, ofwhich the following is a specification.

This invention has relation to machines for mixing dough, and othermaterials of like consistency and has for its principal object, theprovision of novel means for imparting slow rotary movement to theagitator or mixing spoon operating within a mixing tank, from agenerator of comparatively high speed by means of a directly connectedspeed reducer without the use of gearing, belts, or like devices.

A. further object of my invention is to provide novel means for tiltingthe mixing tank from an upright position to a position in which thecontents may be discharged and vice versa and for automatically stoppingand locking the tank at the point where it is desired to stop it.

My invention consists in the construction, combination and arrangementof mechanisms hereinafter spe cifically described and claimed.

In the accompanying drawings: Figure 1, is a side elevation of themixing machine. Fig. 2, is a horizontal section illustrating part ofthemachinery taken on the line XX of Fig. 1. Fig. 3, is an end view of thetank. I

In the drawings 1, is a base plate to which are bolted the two "A frames2 and .3, supporting the journal boxes 10.

4, Fig. 1 and Fig. 3, is the mixing tank having trunnions 11 cast at itsends which journal in 10, and furnish a means for tilting the tank.

5, Fig. 1, is the mixing spoon or agitator, keyed to shaft 12 andjournaling in trunnions 11.

9, Fig. 1, is any speed reduction device which reduces the speed of themotor 8 to which it is directly connected, by means of a coupling.

6, Fig. 1 and Fig. 2, is a stand which supports said reduction deviceand also the motor, the motor support 7, being cast in one with 6. i

13, Fig. 1, is a driving pulley which operates clutch pulleys 23 and 24,and also furnishes a means for connecting shaft 12 to shaft 33 ofreduction device in 9.

14, Fig. 1 and Fig. 2, is a bracket cast in one piece with 3, whichsupports, and in which journals shaft 35.

' To the latter is keyed fork 34, hand lever 19 and lever rotating 23and 24 in opposite directions.

21 and 22, Figs. 1, 2, and 3 are lugs cast on the end of tank 4, toengage lever 16, and thus hold or look tank to prevent the same fromtilting when pulleys 23 and 24- are disengaged.

20, Fig. 1, 2, and 3, is a lever to automatically stop the tankin thedesired upright or horizontal position; it is held in place by lug 32cast on standard 3, and pin 31, and has a forked end to engage lever 16.

29 and 30 are studs or projections cast on segment 25, Which operate thelever 20, which in turn through the system of levers 16, 17 and18.disengages clutch 28.

The-operation is briefly as follows: The rotation of the agitator bythemotor being obvious and clutch pulley 23 being. in engagement withthe clutch 28, lever 16 passes out of the slot 22 and the tank rotatesin the direction indicated by the arrow as shown in Fig. 3, thusbringing stud 30 in contact with lever 20; by this time lug 21 occupiesthe former position of lug 22 and when stud 30 strikes lever 20, thelatter will not only force lever 16 into slot 21, thus locking the tank,but will also disengage theclutch 28 thus stopping the pinion 26 fromrotating. In a similar way, the tank is automatically stopped in avertical position by 29.

WhatI claim and desire to secure by Letters Patent is:

1. In a mixing machine, the combination with a tiltable mixing tank, anda rotary agitator arranged therein, and adapted to rotate independentlythereof of a rotary elec- 'tric motor from which said agitator isdriven, axially ,alined with the shaft of said agitator, a speed reducerinterposed betweenthe shafts of the motor and agitator and means fortilting the tank operated from the motor.

2. In a mixing machine the combination with a trunnioned,trough-shapedtank, a horizontally arranged agitator in said tank and ashaft to which said agitatoris attached passing through one end of saidtank, of means for tilting said tank, in opposite directions and forautomatically stopping said tank at desired points.

3. In a mixing machine the combination with a tiltable mixing tank and arotary agitator in said tank, having an exteriorly projecting horizontalshaft, of a drive pulley mounted on said shaft, right and left clutchpulleys connected to said drive pulley by belts, a horizontal shaft onwhich said clutch pulleys are loosely mounted, a clutch splined on saidhorizontal shaft, a clutch operating lever, stops formed on one end ofthe tank and means connected respectively to the clutch pulley shaft andthe clutch lever, whereby the tank may be tilted in either direction andautomatically stopped at desired points.

4. In a mixing machine the combination with the horizontally arrangedtiltable tank 4, rotary agitator 5,, agitator shaft 12, and drive pulley13, of the right and left clutch pulleys 23, 24, clutch 28, clutch lever19, shaft 27, pinion 26, toothed segment 25, carrying stops 29, 30,levers 16, 20, and connections between the clutch lever and lever 16,substantially as described.

In testimony, whereof I aflix my signature, in presence of twowitnesses.

ROBERT HOHNBACH.

Witnesses STEPHEN A. Goonsrnnn, JOHN M. WOLFRUM.

